Does for example start a sentence?

Excuse me, I'm curious about a grammatical question regarding sentence structure. Could you please clarify whether the phrase "for example" can indeed begin a sentence? I've always been a bit unsure about this and I'd appreciate your expertise on the matter. It would be great if you could also provide some examples or context where it's appropriate to use "for example" at the start of a sentence. Thank you in advance for your assistance.